Reversing mechanism for boat-propellers.



q. HECK l 0.1. VITEK. 'Y REVERSING MECHANISM FOR `BOAT PROPELLERS.

APPLICATION FILED Aue. l1. 1914.

l Pate11ted Nov. 30

mws.

2 SHEETS-SHEET 1.

l. HECK L C. J. VITEK.

REVERSING MECHANISM FOR BOAT PROPELLERS. APPLICATION FILED AUG. II. 1914.

Patented Nov. 30, 1915.

'Z SHEETS-SHEET 2r Il. I A y I I .i

invento 70.'

JERRY HECK AND `ennemis .IvIT.EK, or MILWAUKEE, wIscoNsIN.

To all whom t may unicam.'

.j Be it known that we, JERRY HECK and" .CHARLES J.- VITEK, citizens ofthe United States, .residing atfthecity of Milwaukee,

County of Milwaukee, and'Sta'te of WiscQn-' sin, have invented new and useful Improve.- ments 1n` Reversing Mechanism vfor Boat-- i Propellers, of which the followingis a speci- Our invention relates to improvements in boat propellers and it pertains `more especially,'among other things, to the device for shifting thepropellerblades from one s ide of the driving shaft, from-which it is suspended, to they other, while revolving,

f whereby the'boat,'with which such-propeller i blades are connected, may be driven-forwardly and rearwardly 'at the willof the operator without stopping or vreversing the ing mechanism.

' n Our invention is explained byreference to I'evoluble movement of such blades or drivthe accompanying drawings, in 'which- Figure .1 represents a side vewpart in section, of our device in conne'cti n with the' rear end ofaboat. Fig.2 is a plan' view .in

section, drawn on` lineA X Xof Fig. 1';

views. V

erence characters Fig. 3 is a plan view, part in 4section, drawn on line- Y Y of Fig. 4; and Fig. 4 is a vertical section drawn on line Z Z of Fig., 3.v

` Like parts are identified bythe same ref- 1 is a `vertical section of the'rearend of an ordinary boat lto which our vmotor propeller -is temporarily attached by the clamp arms l2 and 3, and clamp bolt 4.

, C.is a driving-motor .of ordinaryV construction 6 6 are the b lades'ofthe propeller Which arealso of ordinary construction. Motion is'communicated from the-'motor 5, to the propeller blades 6" 6, through crank 7 and shafts. Sand 9, miter gear 10 and 11, and

transverse shaft 12, whereby, when the mfo-` tor is started said blades will be caused to revolve; lVhen the propellerblades 6 6` are in the position shown, the boat will be driven -forwardly in the direction indicated by the arrow 13. When, however, the propeller blades are brought tothe opposite side of -the driving shaft, as indicated by dotted lines, the boat will be\driven backwardly in -the direction indicated by' -the arrow 14,

while said' blades will'continueto revolve in the same d irectionwith' the supporting shaft.

specicatio of Letters Patent.

throughout thev several REVERSING MEc'HANIsr/I Fonl BOAT-PROPELLERS.

,Patented Nox-pso, 1915.

Application led August 17, 1914. Serial No. 857,051.

' The blades 6.6, and their supporting shaft 12, are suspended from therear end of the. boat 15 bythe stationary sleeve 16, housing 17, sleevei18, and revoluble tubes 19 and 20. The tubes 19 and 2O are telescoped together, and are adapted to' be extended and contracted as may be required to locate the propeller blades at the required-depth beneath the surface of the water. lVhen the blades have been thus properly located, the tubes 19 land 20 are rigidly secured vtogether clamp bolt 21, against one of the clampV lugs 22, therebeing a clamping lug on each en d of Itheclamping coll'ar 23, whereby, as4 said nut is turned down, the' said telescop ing tubes are rigidly clamped and caused to revolve together. The telescoping tubes19 and 20 are connected near their centers with the rear end of the boat by the brace member 24, and tube inclosing collar 25. The upper end of the crank 'shaft 7 is provided with a flywheel 26, and said fly wheel is provided with a handle 27, by which it Amay be manually turned when star-ting the motor.' 28 isa forcepulnp, the piston and otherinterna'l parts of which are not shown;l `The force 30, whereby said'rod and piston connected therewlth, are `forced upward with each reyolution of the hub 30, while .said'piston and rod, are adapted to be movedin the opposite direction Vby a spring no't'shown'. As the by turning ddown a nut, not. shown, on the pulnp is adapted to be operated by contact of. the 'pistonrod '29 with the eccentric hub pump is thus operated, water is ,forced 'to' the cylinder of the motor 5,-'through the iexibletube 531, whereby the motor is prevented from becoming excessively heated.'

Io the upper end of the telescoping tube 20, 1s rigidly attached a revoluble member comprising the vertical sleeve 3 2, horizontal disk- 33, stop lugs S11- 34, and cams 3 5-35, allof which parts are formed integrally or rigidly connected, and are'adapted :ato revolve together. It will be understood that the several membersthus 'connected together, are

normallyheld linl a fixed position by the downwardly projecting lug 3.6,'which lug "36, is rigidlyc'onnected -with the push rod 37.

It will now be understood that whenthe push'rod 37 is moved toward the'right as shown inFigs. 1 andV 2, one of thestop.

blocks 34 will contact therewith, whereby ythe`revolublel movementiof the telescoping tubes will -be stopped." Wh'en,. however, a rearward movement is communicated to the push rod 37, said lug 36 will be thrown out of contact with the stop lug 34, whereby said stop lug, together'l with supporting disk 33,

cam 35, collar 32, and telescoping ltubes 19.

and Q will be free to revolve with the driving shaft av half revolution when the next adjacent cam 35, will be brought 1n Contact Y with saidflug 36, whereby said lug 36, to-

gether with` the push rod 37, will be automatically pushed back to its former position, where it will again be brought in contact with the next approaching lug 34, whereby said lug 34, together with the telescoping tubes and all parts, rigidly connected therewith, will be again stopped.

'Thus it is obvious that, since the propeller blades are suspended from said tubing, they will be revolved a half revolution every time a longitudinal movement is communicated to said push rod, and that when the propeller blades are in the rear of the lower end of said telescoping tubing, as shown in Fig. 1, the boat will be propelled forwardly as indicated bythe arrow 13. By pushing forwardly again on said push rod, said telescoping tubing and propeller blades will revolve another one half revolution, and be again stopped by said downward projecting lug 36 in the position indicated by .dotted lines in said'F ig. 1, whereby the boat will be driven rearwardly.

38 is afliandle for the push rod from the longitudinal center of which said push rod rojects a slight Adistance as shown in Fig. 1.

husit is obvious that the movement of the l 'boat may be readily reversed and the boat caused to move either forwardly or rearwardlyk at the lwill of the operator by simply pushing rearwardlyupon the protruding end of said push rod. For convenience in handling, thepush rod 37 is preferably madel in'two parts, which parts are pivot-l ally 'connected together by the pin'39, and said parts are retained in alinementwith each other by the supporting tubular mem-l4 ber 40, which member, is held in alinement with the sleeve 16 by the hand screw 41.

In view of thefact that invention herein is not predicated on the telescoping tubing, the form of the propeller, the motor, or twopart extensible driving shaft, we have, for brevity of description, in the claims hereinafter referredto such parts in the` singular,

. regardless of the construction of such parts.

It will'be understood thatA the propeller bladesv and .the tubing with which such blades are connected are turned by the force'- transmitted through the gears 10 and 11 and by the running friction of the motor t0-4 gether with the back pressure on the propeller as the propeller blades are being driven.

Having thus described our invention what -lution.

2. In a'device of the described class, the

`combination with the propeller driving shaft and shaft inclosing tubing, of a revoluble member, rigidly fixed to the upper end .A

of said revoluble tubing, a propeller connected with the lower endof said tubing; a longitudinally movable push-rod, and holding means' adapted to temporarilyengage and hold saidrev'olublememben said holding means being adapted as said push-rod. is moved longitudinally to be moved out. of engagement with said revoluble member, and to be automatically returned to its former position by the movement of said revoluble member.

3. In a device of the described class, the

combination with a revoluble memberafiixed .l

to the upper end of a propeller supporting tubing, a longitudinally movable push-rod, a holding lug connected with said rod, said lug being adapted to temporarily engage and' hold said revoluble member, said revoluble member 'and tubing being adaptedv when released from said lug to turn a half revolution, whereby astop lug vconnected with said revolving member is automatically brought in Contact with' the holding lug of said revolving member is stopped. In Atestimony whereof we afiix our signatures 1n the presence of two wltnesses.

JERRY HECK. CHARLES J. VITEK.

Witnesses Jas. B. ERwI, l

O. R. ERwIN.

' saidpush rod, whereby the' movement of .A 

